17 lines
475 B
Bash
17 lines
475 B
Bash
#!/bin/sh
|
|
# Usage: sleep_until <time>
|
|
# Ex: sleep_until 3:00 pm
|
|
|
|
sleep_until() {
|
|
if [ -n "$1" ] && date --date="$*" > /dev/null 2>&1; then
|
|
SLEEP_TIME="$(( $(date -f - +%s- <<< "$*"$'\nnow') 0 ))"
|
|
if [ "$SLEEP_TIME" -gt 0 ]; then
|
|
echo "Sleeping until: $(date --date="$*") (${SLEEP_TIME}s)"
|
|
sleep "$SLEEP_TIME"
|
|
else
|
|
echo "Sadly, you cannot sleep to a time in the past"
|
|
fi
|
|
else
|
|
echo "Please input a date"
|
|
fi
|
|
}
|